55227457 has 2 divisors, whose sum is σ = 55227458. Its totient is φ = 55227456.

The previous prime is 55227443. The next prime is 55227463. The reversal of 55227457 is 75472255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52765696 + 2461761 = 7264^2 + 1569^2 .

It is a cyclic number.

It is not a de Polignac number, because 55227457 - 2¹¹ = 55225409 is a prime.

It is not a weakly prime, because it can be changed into another prime (55227427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27613728 + 27613729.

It is an arithmetic number, because the mean of its divisors is an integer number (27613729).

Almost surely, 2^55227457 is an apocalyptic number.

It is an amenable number.

55227457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55227457 is an equidigital number, since it uses as much as digits as its factorization.

55227457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98000, while the sum is 37.

The square root of 55227457 is about 7431.5178126679. The cubic root of 55227457 is about 380.8187724111.

The spelling of 55227457 in words is "fifty-five million, two hundred twenty-seven thousand, four hundred fifty-seven".